LTE Launch and Services for the Next Decade

Copyright© 2011 NTT DOCOMO, Inc. All rights reservedCopyright© 2011 NTT DOCOMO, Inc. All rights reserved 1Seizo ONOEMarch 21, 2011

LTE Launch and Services LTE Launch and Services for the Next Decadefor the Next Decade

Seizo ONOESeizo ONOESenior Vice President and Managing Director of Senior Vice President and Managing Director of

R&D Strategy DepartmentR&D Strategy DepartmentNTT DOCOMO, INC.NTT DOCOMO, INC.

ITU-R Regional Workshop on ‘IMT for the Next Decade’, Bangkok, Thailand

Contents

Copyright© 2011 NTT DOCOMO, Inc. All rights reservedSeizo ONOEMarch 21, 2011 2

ContentsContentsCurrent Status of Mobile Servises

Mobile Market Status in JapanDOCOMO’s 3G Services

LTE ServicesOverview of LTE Service ‘Xi’Spectrum, Deployment and PerformanceVoice Strategy and Services

IMT for the Next DecadeOriginal Concept of Super 3G and LTE-AdvancedChallenges for the Next Decade

end

SummaryPre-history of LTE standardization






end



31.5

41.5

51.1

61.169.3

75.981.9

87.091.8

96.7102.7

107.5112.2

118.2

0.1 7.216.7

30.4

48.3

88.1

99.6

109.1116.7

34.6

51.9

62.569.7

75.279.8

84.488.7 91.2 93.2 96.4

69.9

0

20

40

60

80

100

120

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

Mobile Subscribers

3G Subscribers

Mobile Internet Access

Mobile Market in JapanMobile Market in Japan

•The penetration rate of 3G has become almost 100%.•Mobile internet had been widely spread in early 2000s.

Reference : Telecommunications Carriers Association

Subs

crib

ers

(Mill

ion)

63% for e-mail,47% for browsing 37% for gamingin a train

Mar. Feb.

Copyright© 2010 NTT DOCOMO, Inc. All rights reservedSeizo ONOEMarch 21, 2011 5Seizo ONOEFebruary 19, 2009 5

(Jun 2004)

Growth of Packet Traffic per UserGrowth of Packet Traffic per User

1,000

0

2,000

3,000

4,000

5,000

Num

ber of Packets P

er Day

・User

Feb1999

Aug1999

Feb2000

Aug 2000

Feb2001

Aug2001

Feb2002

Aug2002

Feb2003

Aug2003

Feb2004

Aug2004

Used 2G PacketsPer Day Per User

Used 3G PacketsPer Day Per User

We need more improvement in spectrum efficiency and cost-effectiveness of the networkin order to provide attractive services by reasonable payment,

• 3G has a much higher capacity than that of 2G. • A potential demand is observed in the increasing traffic.


Oct2003

Apr2004

Oct2004

Apr2005

Oct2005

Apr2006

Oct2006

Apr2007

Oct2007

Apr2008

Oct2008

Apr2009

Growth of Packet Traffic/UserGrowth of Packet Traffic/User

Verizon presentation

Contents

ARPU

Trend


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

11,000

12,000

13,000

14,000

15,000

2003

/3

2004

/3

2005

/3

2006

/3

2007

/3

2008

/3

2009

/3

2010

/3

2011

/3

2012

/3

2013

/3Growth of Packet Traffic in DOCOMOGrowth of Packet Traffic in DOCOMO

Still pictureStill picture

OthersOthers

Video Video

• Data traffic has been increasing rapidly at an annual rate of approx. 1.6 times over the previous year.

• Video is the major contents in data traffic.






end



DOCOMO provides various servicesover the 3G network and mobile devices.

ETWSETWSMeteorological Office

http://www.nttdocomo.co.jp/service/entertainment/1seg/index.html

http://www.nttdocomo.co.jp/service/entertainment/video_imotion/imotion_videoclip/index.html

http://www.nttdocomo.co.jp/service/entertainment/pocket_u/index.html

http://www.nttdocomo.co.jp/service/entertainment/iappli_online/index.html

http://www.nttdocomo.co.jp/service/entertainment/iappli_touch/index.html

http://www.nttdocomo.co.jp/service/entertainment/chaku_uta_full/index.html

http://www.nttdocomo.co.jp/service/entertainment/uta_houdai/index.html

http://www.nttdocomo.co.jp/service/customize/kisekae/index.html

http://www.nttdocomo.co.jp/service/communication/imode_mail/function/deco_mail/index.html

http://www.nttdocomo.co.jp/service/communication/imode_mail/function/decome_anime/index.html

http://www.nttdocomo.co.jp/service/safety/voiceinput_mail/index.html

http://www.nttdocomo.co.jp/service/communication/videophone/index.html

http://www.nttdocomo.co.jp/service/customize/iconcier/index.html

http://www.nttdocomo.co.jp/service/communication/2in1/index.html

http://www.nttdocomo.co.jp/service/information/index.html#p02

http://www.nttdocomo.co.jp/service/convenience/osaifu/index.html

http://www.nttdocomo.co.jp/service/world/roaming/outline/index.html

http://www.nttdocomo.co.jp/service/data/high_speed/index.html

http://www.nttdocomo.co.jp/service/data/high_speed/index.html

http://www.nttdocomo.co.jp/service/safety/areamail/index.html

http://www.nttdocomo.co.jp/service/entertainment/music_video_channel/index.html

http://www.nttdocomo.co.jp/english/product/index.html


““ii--concierconcier””Mobile phone to serve as a Mobile phone to serve as a

““conciergeconcierge”” to assist individual customerto assist individual customer’’s s

daily activitiesdaily activities

Aim to develop ultimate mobile Aim to develop ultimate mobile phones like phones like

““AladdinAladdin’’s magic lamps magic lamp””

Evolution from a Evolution from a ““phone capable of doing XXphone capable of doing XX””

into into ““phone that will actively do XX phone that will actively do XX

on behalf of customerson behalf of customers””

Number of subscriptions(Million subs)

08/12 09/3 09/06 09/09 09/12 10/3 10/6 10/9 10/12

(titles)

Steadfast growth

Steadfast growth

Number of content posted on iMenu

0

200

400

600

800

08/12 09/3 09/6 09/9 09/12 10/3 10/6 10/9 10/12

800

600

400

200

0

“i-concier” subscriptions topped 5.80 million, growing in line with the increase in number of compatible contents

2.00

4.00

6.00

0.00


Video services Video services ““BeeTVBeeTV””

¥315/month (tax included)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

09/6 09/9 09/12 10/3 10/6 10/9 10/12

VideoVideo

DOCOMO VIDEO

What you What you really wanted really wanted to see is now to see is now in your handsin your hands

(Million subs)


ProductsProductsFeature phones


New TrendsNew TrendsSmartphones

Embedded Modules

Photo Panel

Data Communications

08/6 08/9 08/12 09/3 09/6 09/9 09/12 10/3 10/6 10/9 10/12

: Usage-based billing plans

(Million subs)

0.20

0.40

0.60

0.80

1.00

1.20

1.40

: Flat-rate data plans

Card-type

USB-type

Mobile Wi-FI router

PC with built-in communication module

LYNX SH-10B Xperia

2009-2010 summer

http://www.nttdocomo.co.jp/product/foma/data/n2502/index.html

http://www.nttdocomo.co.jp/product/foma/data/l07a/index.html

http://www.nttdocomo.co.jp/product/foma/data/l05a/index.html


Cumulative sales

/2010 /2011

(Million)

Jun. Sep. Dec. Mar.0.0

0.5

1.0

1.5

2.0

Sales of smartphones accelerated rapidlysince last year

GALAXY S

GALAXY TabREGZA Phone LYNX 3D

BlackBerry Curve 9300

Optimus chat

SmartphonesSmartphones in DOCOMOin DOCOMO

Xperia arc

Xperia

MEDIAS

Optimus Pad

2010-2011


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

11,000

12,000

13,000

14,000

15,000

2003

/3

2004

/3

2005

/3

2006

/3

2007

/3

2008

/3

2009

/3

2010

/3

2011

/3

2012

/3

2013

/3Growth of Packet Traffic in DOCOMOGrowth of Packet Traffic in DOCOMO

Still pictureStill picture

OthersOthers

Video Video

Smartphones

• Various services, especially video services, and high speed mobile access increased the data traffic.

• Further traffic growth is projected due to dramatic increase in smartphone sales.






end







end



DOCOMO launched LTE service ‘Xi’ in December 24 2010, first in Tokyo, Nagoya and Osaka areas initially with data terminals

LTE Service ‘Xi’

(crossy)The brand name is written Xi™ and read “crossy.”

Maximum Downlink Speed at Launch

75Mbps37.5Mbps

UE Capability

100Mbps (Category 3)

(In case of 10MHz bandwidth)

(In case of 5MHz bandwidth)

HighHighSpeedSpeed

LargeLargeCapacityCapacity

LowLowLatencyLatency

Brand


Phased Area Deployment ofLTE Service “Xi”

Tokyo, Nagoya, Osakaat service launch

Prefectural capitals and similarly sized cities

Other major cities nationwide

within fiscal 2011

LTE (Xi)LTE (Xi) -- Coverage Coverage --

Phased Area Deployment

TokyoOsaka Nagoya

within fiscal 201215,000 eNodeBs in FY201235,000 eNodeBs in FY2014


LTE (Xi)LTE (Xi) -- Terminals Terminals --

Ｘｉ

Data Terminals at launch

Ｘｉ

Wi-Fi RoutersＸｉ

Handset Terminals

LTE/HSPA/W-CDMA /GSM/GPRS

Ｌ-０２Ｃ

On sale now (December 24, 2010)

Ｆ-０６Ｃ

USB data terminal for LTE World’s first ExpressCard-type data terminal for LTE

in 2011

in late 2011

To be launched in April 2011

LTE/HSPA/W-CDMA /GSM/GPRS


LTE (Xi)LTE (Xi) -- Charges Charges --

Monthly charges (tax inclusive)

9,135 yen

6,510 yen

1,000 yen

Data volume7GB

～～～～

5GB20,667KB

3,177KB

0.315 yen/KB

～～

～～

～～～～

Plus 2,625 yen per 2GB for usage over 5GB

Unlimited data use at ４,９３５

yen per month under “Xi Data Plan Ninen (2years)”

Ｘｉ

Start Campaign

99.6% of 3G subscribers use less than 5GB of data per month.

Data-only billing plans for Xi are two-tiered as is the case with FOMA. On a 2-year contract, a monthly charge of 6,510 yen covers up to 5GB of data transmission.

Xi start campaign

～～～～5,985 yen(3G)

4,935 yen

Xi (LTE)

Xi (LTE)






end



How to use spectrum for new technologiesHow to use spectrum for new technologies

3G LTER99

frequency

R99/HSPA

R99/HSPA

To use different carriers for 3G and LTE

To use different carriers for 3G and LTE

To share RF carriers between W-CDMA(R99) and HSPA(R5-)

To share RF carriers between W-CDMA(R99) and HSPA(R5-)

=3G

frequency

LTE

frequency

To share the existing band for 3G with LTE

To share the existing band for 3G with LTE

To use a brand new band for LTE only

To use a brand new band for LTE only

e.g. 2.1GHz Band

e.g. 2.6GHz Band

At HSPA launch At LTE launch It is possible.It will be needed for efficient use of existing spectrum in the future.

DOCOMO took thisat launch.

Others focus on this at this moment.

LTE does not necessarily require a brand new spectrum.

The existing spectrum can be used for LTE.Global and cost-efficient 2.1GHz band is suggested forLTE network operations in Europe, Asia and so on andLTE UE implementations in the world.

LTE does not necessarily require a brand new spectrum.

The existing spectrum can be used for LTE.Global and cost-efficient 2.1GHz band is suggested forLTE network operations in Europe, Asia and so on andLTE UE implementations in the world.

DOCOMO will take thisin 2012.

.with 2.1GHz band.

.with 1.5GHz band.


System Deployment ScenarioSystem Deployment Scenario

2001 2010s 2015-Ultimate status

After 2020s

LTE-A

4G S

pect

rum

(A n

ew IM

TS

pect

rum

)

2G

LTE

3G3G S

pect

rum

(IMT

Spe

ctru

m)

PDC

LTE/LTE-A

Spectrum UseSpectrum Use

Efficient use of 3G spectrum for a long time

1Gbps services with broad spectrum allocation

Spectrum fragmentation is a challenge for LTE.Europe：2.6GHz band, 800MHz band, 1.8GHz bandUS：700MHz band, AWS band(1.7GHz/2.1GHz)Japan：1.5GHz band

At the LTE launch,DOCOMO launched LTE with 5-10MHz bandwidth in 2.1GHz band.A new spectrum, 1.5GHz band with 15MHz bandwidth, will be used in 2012. Others(800MHz,1.7GHz) are subject to the conditions.

The LTE spectrum will be expanded according to the spread of LTE UEs for a long timeframe.

At the LTE launch,DOCOMO launched LTE with 5-10MHz bandwidth in 2.1GHz band.A new spectrum, 1.5GHz band with 15MHz bandwidth, will be used in 2012. Others(800MHz,1.7GHz) are subject to the conditions.

The LTE spectrum will be expanded according to the spread of LTE UEs for a long timeframe.

•We can reuse the assets of nationwide base sites such as antennas.

•2.1GHz is favorable from global roaming point of view.

•UEs have 2.1GHz RF parts.


NodeB

CPRI

RRE

Antenna

Optical fiberOptical fiber

2.1GHz

RemoteRadio Equipment

(Base Band Unit)

RRE launch in 2004DOCOMO’s Network

Typical 3G radio network configuration in DOCOMORemote radio heads are used widely in DOCOMO's network.

NodeB

CPRI

RRE

Antenna

Remote Radio Equipment for LTE and UMTS


2.1GHz

(Base Band Unit)

eNodeBeNodeB Deployment Scenario with Deployment Scenario with Remote HeadsRemote Heads

All IP Network All IP

NetworkEPC

NodeB

CPRI/OBRI/ORI

RRE

eNodeB

Antenna


2.1GHz

Common spectrum 2.1GHz band used for LTE and UMTS

Remote Radio Equipment for LTE and UMTS

(Base Band Unit)

Commercial launch in 2009

Commercial launch in 2010

“Quite cost effective”.http://mobilesociety.typepad.com/mobile_life/2009/02/mwc-roundup.html

3G LTE

f

/OBRI/ORI

http://mobilesociety.typepad.com/mobile_life/2009/02/mwc-roundup.html


= 0 bps <5Mbps 5Mbps<

10Mbps< 15Mbps< 20Mbps<

Downlink Throughput with 5MHz Bandwidth

Site1

Site2

Site3

Site4

Site5

500m

Uplink

LTE Performance in OutdoorLTE Performance in Outdoor

Average Throughputthorough the course 6.78Mbps

Maximum Throughputin the course 26.64Mbps

Max. in specifications 37.5Mbps

NodeBNodeB(BBU)(BBU) ＣＶ新秦野堀西ＲＫ:

15mコンクリート柱2GHz帯 3キャリアIMG_8801.JPG

2.1GHz RRE2.1GHz RREfor LTE/3Gfor LTE/3G

2.1GHz2.1GHzAntennaAntenna(2Tx,2Rx)(2Tx,2Rx)

Reused

coverNodeBNodeB(BBU)(BBU) ＣＶ新秦野堀西ＲＫ:

15mコンクリート柱2GHz帯 3キャリアIMG_8801.JPG

2.1GHz RRE2.1GHz RREfor LTE/3Gfor LTE/3G

2.1GHz2.1GHzAntennaAntenna(2Tx,2Rx)(2Tx,2Rx)

Reused

eNodeBeNodeB(BBU)(BBU)

Another site

cover

LTE3G

f


Indoor CoverageIndoor CoverageBefore LTE launch

Indoor Coverage RoF System

NodeB

E/O

O/E

antennas

O/E

O/E O/E

3G

f

3G

fNodeB

Optical fibers

LRE

NodeBeNodeB

LRE E/O

O/E O/E

O/E O/E

3G LTE

f

3G LTE

f

withoutMIMO

After LTE launch without MIMOTo use the system as it is

NodeB/ eNodeB


To use fiber wiring as it is

NodeBeNodeB

LRE

LRE

NodeBeNodeB

LRE

導入前

MIMO無

MIMO有

追い張り

After LTE launch with MIMO

O/E O/E

O/E O/E

NodeBeNodeB

LRE E/O

3G LTE

f

3G LTE

f

To change the system to new one

WDMPolarization

Antennas

NodeB/ eNodeB


To use fiber wiring as it is

withMIMO


13,500 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,40083,200

男子便所

倉庫１

システム機械室

プレゼンテーションホール準備室

展示室

風除室

エントランスホール

打合せコーナー

倉庫

倉庫

１

２

廊下

喫煙室

健康管理室

給湯室

相談室

女子便所

（PS）

Downlink Throughput (Average)

50m

39Mbps

46Mbps 39Mbps

41Mbps

30Mbps

34Mbps

36Mbps23Mbps

22Mbps23Mbps

22Mbps

20Mbps

35Mbps

50Mbps

13,500 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,400 6,40083,200

男子便所

倉庫１

システム機械室

プレゼンテーションホール準備室

展示室

風除室

エントランスホール

打合せコーナー

倉庫

倉庫

１

２

廊下

喫煙室

健康管理室

給湯室

相談室

女子便所

（PS）

50m

49Mbps

49Mbps 49Mbps

49Mbps

42Mbps

40Mbps

40Mbps42Mbps

48Mbps38Mbps

20Mbps

26Mbps

39Mbps

51Mbps

50 Mbps <40 Mbps <30 Mbps <20 Mbps <

Downlink Throughput (Maximum)LTE Performance in Indoor LTE Performance in Indoor

with 10MHz Bandwidth

DOCOMO R&D CenterBldg. #1 1st Floor in Yokosuka

details

with MIMO






end


CS/PS IMS LTE CSFB VoLTEATM


AIPN Development Plan for Core Network

RNC

NB

Network EvolutionNetwork Evolution

MSC

RNC

GMSC

MSC

RNC

NB NBNB NB

GGSN

SGSNCS-GW

IMS

IPATM ATM IP

IP IP IPIP

IP

RadioAccessNetwork

CoreNetwork

UserEquipment

Integrated CS/PS IP Network handles both of PS and CS services.CS services are controlled by IMS in the core network.

2009-

NBNB

ATM IPIP

IMS

CS-GW

RNC

Node B

UE

Usual 3G protocol（L1-L3)

IMSSIP protocol

Integrated CS/PS domainIP Network

PS servicesCS services

CS Network


2010-AIPN Development Plan for Core Network

RNC

GGSN

SGSNCS-GW

NB


RNCRNC

P-GW

eNB NB eNB NBNB NB eNB

S-GWCS-GW

IMS

RadioAccessNetwork

CoreNetwork

UserEquipment

NBNB

PS services

MME

LTE

EPC


eNodeB and EPC are introduced for LTE launch.LTE provides PS service only.


Handset type of LTE terminals are introduced.CS services are provided over 3G network by CS fallback.

2011-AIPN Development Plan for Core Network

RNC

GGSN

SGSNCS-GW

NB


RNCRNC

P-GW

eNB NB eNB NBNB NB eNB

S-GWCS-GW

IMS

RadioAccessNetwork

CoreNetwork

UserEquipment

NBNB


CSFBCSFB

MME

LTE

EPC



AIPN Development Plan for Core Network

RNC

GGSN

SGSNCS-GW

NB


RNCRNC

P-GW

eNB NB eNB NB eNBNB eNB NB eNB

CS-GW

IMS

RadioAccessNetwork

CoreNetwork

UserEquipment

NBNB eNB

201X-

MME

S-GW EPC

LTE



CS services are provided over LTE network by IMS based VoLTE (Voice over LTE).


DOCOMO’s Change and Challenge to Achieve New Growth (Oct. 31, 2008)


Collaboration of Network and HandsetCollaboration of Network and Handset

Processing, Memory, etc. to be split optimally between network and handset

S̄bāy dī

สบายด ี?


【History view (e-textbook) 】

A view of the town 1300 years ago will be projected on a paper-type display when it is held against the scenery. A form of education to be realized by high-speed, low-latency communications and AR technology.






end







end



2000 2005 2010 2015

HSDPA

R99

4G

HSPA

Super 3G 3G Spectrum

4G Spectrum

Super 3G (3.9G) Super 3G (3.9G) High-level Objectives

To ensure the continuous and long- term growth of the mobile communication industry

To maintain the competitiveness of 3G even in the 4G era To provide a smooth path to 4G introduction

4G

S3G

Smooth introduction

of 4G

Long-term evolution of 3G

=LTE =LTE

R99

HSDPA

HSPA

• Providing a smooth path toward 4G was DOCOMO’s original motivation for Super3G（LTE) in 2004.

LTE

LTE-A

3GPP Specs

• In 2008, 3GPP started IMT-Advanced study and TR 36.913 stated “LTE- Advanced is an evolution of LTE.”

LTE promises an evolution path toward a true 4G / LTE-Advanced.

http://www.3gpp.org/../article/lte-advanced


3G LTE

f


NetworkEPC

LTELTE--AA introduction scenario exampleintroduction scenario example

NodeB

2.1GHz/800MHz

3G LTE

fRRERRE 2.1GHz

eNodeB

LTE (2.1GHz and 800MHz) LTE (2.1GHz and 800MHz)

for 3G for LTE

Base Band UnitRF Unitfor 3G/LTE

800MHz


System deployment scenario

LTE/LTE-A3G

f


NetworkEPC

LTELTE--A introduction scenario exampleA introduction scenario example

NodeB

2.1GHz/800MHz

3G

fRRERRE 2.1GHz

eNodeB

LTE-A introductionLTE-A introduction

LTE/LTE-A

To share RF carriers between LTE and LTE-A

To share RF carriers between LTE and LTE-A

for 3G for LTE

Base Band UnitRF Unitfor 3G/LTE/LTE-A

RF Unit:To use as it is

Base Band Unit:Software upgrade for minor functions

RF Unit:To use as it is

Base Band Unit:Software upgrade for minor functions

CarrierAggregation

800MHz

Add a new band


System deployment scenario

LTE-A

RRE

e.g.3.5GHz

To deploy only in the high traffic areas

To deploy only in the high traffic areas

for capacityLTE/

LTE-A3G

f


NetworkEPC

LTELTE--A introduction scenario exampleA introduction scenario example

2.1GHz/800MHz

3G

fRRERRE 2.1GHz800MHz

LTE/LTE-A

Base Band UnitRF Unitfor 3G/LTE/LTE-A

3G LTE

f

NodeB

2.1GHz/800MHz

3G LTE

fRRERRE 2.1GHz

800MHz

eNodeBfor 3G for LTE


3G LTE

f

3G LTE

f

NodeB

2.1GHz/800MHz

3G LTE

fRRERRERRE 2.1GHz

800MHz

eNodeBeNodeBfor 3G for LTE


CarrierAggregation

RF Unit:Hardware addition for a new RF bandBase Band Unit:Additional Hardware may be needed depending on functions

RF Unit:Hardware addition for a new RF bandBase Band Unit:Additional Hardware may be needed depending on functions

LTE-A +new RF bandLTE-A +new RF band

NodeBeNodeB

for 3G for LTE

LTE LTE-A






end



Mobile Traffic Forecast in JapanMobile Traffic Forecast in Japan

Approx. 200 times

[1]

[2]

[3]

"Working Group on Discussion of Frequencies Needed to Realize Wireless Broadband Services“ Report

Telecommunications Council


By 2015, the mobile data traffic footprint of a single subscriber could be 450 times what it was 10 years earlier in 2005.

The growth in mobile broadband shows

no signs of slowing, with an average

two million new subscriptions being

added daily. Up to 50 billion devices

are expected to be connected by 2020.

Ericsson: http://www.ericsson.com/

Japan social networking trends show importance of mobile page views = 72% (2009) vs. 17% 3 years ago of total page views of Mixi

Morgan Stanley:

Mobile video has the highest growth rate of any application category

Cisco VNI Mobile:NSN: http://www.eweek.com/

….. said Mika Vehvilainen, chief technology

officer at Nokia Siemens Networks.

"Mobile [data] network traffic will be up 300-

fold in the next five years, in fixed it will go

up 30 to 40 times," he said during a keynote

presentation at Broadband World Forum

Europe in Paris.

growth of 300X to 500X over 10 years (from

2007-2017) [3Gamericas, 2008]. A recent

Cisco study combined actual MNO traffic with

analysts’ forecasts for mobile internet growth,

and concluded that this trend would continue

for at least the 5-year planning horizon, with

data traffic more than doubling each year

3gamericas: http://imcellular.org/

Ericsson: http://www.ericsson.com/

1000 times more data than voice by 2020

….. , Ericsson CTO Håkan Eriksson talks

about the exponential growth in data usage ….

in 2015 there will be 30 times more data than

voice. If the trend continues to 2020 then data

usage will have grown by a factor of 1000.

Intel's John Woodget, global director, telecoms sector, gave more conservative data growth predictions, however—at least 20 billion connected devices by 2020 and a 300-fold increase in traffic—but he warned that even at that level of growth the challenge "may be far greater than we expect".

Intel: http://www.businessweek.com/Cisco: http://www.fiercemobilecontent.com/Cisco forecasts mobile data traffic to grow 39-fold through 2014…. Cisco Systems' Visual Networking Index Global Mobile Data Forecast. The anticipated increase translates to a 39-fold mobile data traffic increase from 2009 to 2014, or a compound annual growth rate of 108 percent.

Consensus in the industry is that there will be substantial growth in demand for mobile data traffic over the next 5 – 10 years

UMTS Forum:

Forecast of Mobile Data Traffic GrowthForecast of Mobile Data Traffic Growth


500 – 1000 timesChallenges for the Next decadeChallenges for the Next decade

(3G)WCDMA

R99

HSPA

LTE(Super3G)

LTE-A(4G)

(2G)

800MHz2GHz

1.7GHz1.5GHz

3GHz-4GHz

Spec

trum

Effi

cien

cy (b

ps/H

z)

Spectrum Bandwidth (Hz)

700MHz

A New Technology

To cope with the increasing traffic demandTo improve Spectrum Efficiency (bps/Hz/m2)

(bps/Hz/cell)×(cell/m2)

To expand Spectrum Bandwidth (Hz)Efficiency per cell × Cell dencity

Total traffic= for 2020


Direction of EvolutionDirection of Evolution

Spectrum extension

Network densityCurrent capacity

Required network capacity

Traffic offloadingSpectrum efficiency- Radio access technologies

including multi-antenna transmission and receiver processing techniques

- Never-ending issue facing researchers and engineers in this area

- Efficient way to reduce cost per bit

- Depends on future spectrum allocation and UE capability

- Technical trends such as multi- layer cell deployment

- High priority requirement: Network architecture to reduce cost per bit

- Offloading strategies tuned to applications and scenarios

Direction of evolution to further enhance network capacity

Cost efficient approach for capacity per cell

Emerging solutions to deal with traffic explosion


Solutions and Expected ContributionsSolutions and Expected ContributionsTarget = 500 – 1000x traffic by 2020

(compared to 2010)Solutions Percentage of

contributionNotes

Spectral efficiency(per cell)

Radio access technology

3x LTE Rel. 10(24x HSPA Rel. 6)

2.5x LTE Rel. 10 (10x HSPA Rel. 6)LTE Rel. 10: 1.3x LTE Rel. 8LTE Rel. 8: 3x HSPA Rel. 6Total = 3 x 1.3 x 2.5 = 10x

Number of Tx/Rx antennas

1.2x LTE Rel. 10 (2.4x HSPA Rel. 6)- 4x4 MIMO for handset UE (smartphone)- Higher-order MIMO (e.g. 12x12) for indoor cells

LTE Rel. 10: 2x HSPA Rel. 6 (4x4 MIMO)Total = 2 x 1.2 = 2.4x

Spectrum extension >2x Newly identified spectrum @ WRC07/16 + spectrum reallocation

Traffic offloading 1.5x 30% traffic assumed to be offloaded (mainly for indoor traffic assuming multi-mode terminals)

Network density 7 – 14x Denser NW deployments including femto/pico-cells and RREs

Total ~ 500 – 1000x


Voice centric

Voice and Data

High-speed data

Super high-speed data(100Mbps ～

1Gbps)

１１GGAnalog

2G2GDigital

3G 3G IMT-2000

4G4GIMT-Advanced

19８０s 19９０s ２０00s ２０１０s

Evolution

Evolution of Mobile CommunicationsEvolution of Mobile Communications

(3.9G)(3.9G)LTELTE

Long-Term Evolution

２０2０s

DECADE

LTELTE--AA

DemandDemand

Technology

Technology

SpectrumSpectrum

http://www.3gpp.org/../article/lte-advanced


SummarySummaryCurrent Status of Mobile Services

In Japan, 3G penetration rate is almost 100% and the mobile internet was widely spread from early 2000s.Data traffic has increased by 10 times in 5 years and the increase rate becomes steeper.

LTE ServicesDOCOMO launched LTE service ‘Xi’ (crossy) on 24 Dec. 2010.LTE has a potential to enhance services by using its features of low latency etc..

IMT for the Next DecadeLTE provides a smooth path to a true 4G for the next decade. Spectrum is a key for the next decade.

end



Documents

LTE Launch and Services for the Next Decade